It's curious to me that I love podcasts so much, because I have only listened to two audio books in my life. I love to read hardback, paper hardback books. But, a podcast is not a book, it's an art form unto itself. Because of podcasts like This American Life, The TED Radio Hour and 99% Invisible, I believed that the best are well-produced: with a central theme, integrated sound bites, interview segments and narrative segue ways; Not just people talking for an hour without any preparation or editing. Then I heard SpyCast, Covert Contact and Pod Save America. I'm sure they're edited to remove burps and sirens, but they are fairly straightforward interviews or unscripted conversation, and they're completely amazing. So really, whatever works! These are a few of my favorite listenings... they are sort of in order of current most favorite per category.